TY  - JOUR
A1  - Heisig, J.P.
A1  - Schaeffer, M.
T1  - Why you should always include a random slope for the lower-level variable involved in a cross-level interaction
Y1  - 2019
DO  - 10.1093/esr/jcy053
VL  - 35
IS  - 2

ER  -